Q6 of 10 Page 12

What is a grid and how does it help us ?

Grid is a network of longitudes and latitudes drawn on a map. This helps us locate places on the map and learn a lot about them, like which direction we would have to go to reach it, what time it would be there at any moment, and how hot or cold it would be there.


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4

Why is it difficult to study the formation of the earth and its structure?

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Read the paragraph under the heading of “Internal structure of the earth” and answer the question.

How can you say the earth is still very active?

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Differentiate between a. Local and Standard time b. Equator and Prime meridian

 8

If every state follows its local time then what problems will arise?